Does anyone know if you can put a 20.78 inch barrel on a carbine changing it from restricted to non-restricted? Also looking for a Non-restricted 1/7 if anyone has one to they wish to divest of. prefer the balance of the shoter handguards, piston length is the same.. like the look better too.
Swiss arms barrel swap from restricted to non-restricted
- Thread starter dizzy
- Start date
Roughneck12
Regular
- Location
- Blackfalds AB
I had an interesting conversation with the gun smith at TSE today. Very enlightening. Give him a call.
Why not an 18.5" barrel on a SAN carbine? Sounds like a great idea to me. Please let us know what you find out.
On the piston lenght, how can it be the same? If the hanguard is longer, it's because the gas block is farther...
canucklehead
CGN Ultra frequent flyer
- Location
- Calgary, AB
You can't put a rifle length barrel on a carbine gas system. It won't work. I asked around before because thats the route I wanted to take, but it can't be done. You'll just end up with a classic green thAt cost you over 4k!
angryeyebrows
CGN frequent flyer
- Location
- Oscar Mike
I've already got that project on the go. Custom 18.5", 1/7 twist, 5.56mm NATO chamber, 1/2x28 threaded, non-restricted Swiss Carbine. As soon as it comes back from the shop, I'll post the details and pics.
For me the advantages over simply buying the full size was:
- Reduced weight due to shorter gas system and barrel length/profile
- Ability to use any AR muzzle device (Vortex)
- Reduced size and overall length
Way She Goes
Regular
Why can't it be done?
The Swiss Arms sytems are not that finnicky to differing gas pressures. They only require a small amount of gas to work the action, all the rest gets vented out through a valve system. Hense the amazing reliblility. I have had the action cycle perfectly with only 2/3 of the required amount of powder in my reloads.
I'd imagine it could work with only a simple barrel swap. I'd throw in the full size gas regulator just to be on the safe side.
If Carbine length someone seeks, I'd say get a 18'' Carbine barrel & have a competent barrel maker to duplicate it, in 18.5'' of course...
Full length Swiss should remain the same as they are in the area of 19'' wihtout the flash hider.
Wrong....the carbine gas piston/operating rod assembly is shorter than the one in the full length gun. I have several 14.3 inch barrels and their associated gas systems that I compared with a full length barrel and gas system, both of which I have on hand as spare parts. They are definitely different lengths.
Brobee
I'd go with the rifle length system. The carbines recoil is noticably sharper.
I'd also keep to a heavier profile under the handguards and out to the muzzle.
Due to the gas block the barrel will need to start life as a thick blank anyhow, so the combinations of lighting could be fluting, dimpling, etc.
I'd also keep to a heavier profile under the handguards and out to the muzzle.
Due to the gas block the barrel will need to start life as a thick blank anyhow, so the combinations of lighting could be fluting, dimpling, etc.
brobee, 100% certain? I know the cqb is much shorter but seemed to me when I measure mine when they were apart the carbine rod and classic green rod were the same. Don't mind being wrong, but if I am it answers my original question and won't attempt it, I know the piton tube is longer but the pistion seemed to be the same length
